I lived in the east bay area and understand the costs. I was at $1750/month for a 2 bed 2 bath condo unit (which was a good deal in my area). I went to a shared house with one roomate for $600. I went from 1000 sqft to about 120 in my bedroom, with the bulk of my things being stored in the garage and eventually sold or donated. My bills did increase from about $40/month to $125, but it was a $1000 savings per month that pushed me over the FIRE finish line.
For you, you're saying there's a possibility you'd only be there one more year. If that's the case, a possible new baby shouldn't have too much impact on the situation. If you started now, you may be 2-3 months along when you move, have a new born 6-7 months in, and that new born would be in your room for a while, then could be moved in with your son. Kids sharing a room is a tradition that should be continued :) (which I realize would happen in your current situation as well). Coin operated laundry is not the worst thing. In my apartment, I could see on my power bill the days that I used my dryer. Also, at least in my area in CA, apartment living meant that I was not subject to the addition fees when water rationing started. There was no way to tell in a huge building who needed to cut back (this bill, trash, and sewer were also included in my rent at the condo).
